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Mathematics 18 Online
OpenStudy (anonymous):

A cyclist rides his bike at a speed of 33 feet per second. What is this speed in miles per hour? How many miles will the cyclist travel in 3 hours? In your computations, use the fact that 1 mile is equal to 5280 feet. Do not round your answers.

OpenStudy (perl):

we can convert feet per second to miles per hour

OpenStudy (anonymous):

how many seconds are in an hour?

OpenStudy (anonymous):

60

OpenStudy (anonymous):

that would be minutes

OpenStudy (anonymous):

so take that and multiply by 60 again

OpenStudy (anonymous):

3600?

OpenStudy (anonymous):

yup now how many feet are in a mile?

OpenStudy (anonymous):

5280

OpenStudy (anonymous):

so now divide that by 3600

OpenStudy (anonymous):

I got 1.46?

OpenStudy (anonymous):

not sure if thats right

OpenStudy (anonymous):

1 sec

OpenStudy (anonymous):

ok looks like i screwed up sorry so what is 33*3600?

OpenStudy (anonymous):

118,800

OpenStudy (anonymous):

ok that is how many feet per hour he is riding now take that and divide it by 5280

OpenStudy (anonymous):

22.5

OpenStudy (anonymous):

wait what is his speed?

OpenStudy (anonymous):

you just found it 22.5mph

OpenStudy (anonymous):

and the distance he traveled in 3 hours is 118,800?

OpenStudy (anonymous):

118,800ft yes

OpenStudy (anonymous):

thank you :) I understand now

OpenStudy (anonymous):

im sorry that is the distance he travels in 1hr so multiply that by 3

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